裸子植物门

In many older classifications they constituted the division Spermatophyta, subdivided into the classes Angiospermae and Gymnospermae.

它们组成了植物分类学中的种子植物门，继而被分为被子植物纲和裸子植物纲。

Plants of the class Gymnospermae having seeds not enclosed in an ovary.

种子不为子房所包被的裸子植物门。

Gymnospermae Pinaceae Coniferopsida in kind.

裸子植物门松柏纲松科中的一种。

Gnetophyta A phylum of gymnosperms with compound cones, cells in the secondary xylem almost identical to angiosperm vessels, and the tendency for the tip of the nucellus to be drawn out into a micropylar tube; there are no resin canals.

买麻藤门：是裸子植物具复合球果的一纲。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。